Which of the following tools will the technician MOST likely use to locate the jack on the patch panel?

A technician deployed a new computer and patched the unit to the data jack. However, no Ethernet connection is detected.
The technician suspects the patch panel is incorrectly numbered. Which of the following tools will the technician MOST likely use to locate the jack on the patch panel?
A. A multimeter
B. A tone generator and a probe
C. A loopback plug
D. A cable tester

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